baber/WOPTO huggingface dataset:
Patent DE-2702011-A1 (DE)
Title: Measurement of imbalance of three=phase system - has oscillating circuit tuned to system frequency to provide output amplitude indicating imbalance
Inventor: GOLDE ERNST DIPL ING
IPC: G01R29/16
Filed: 1977-01-14
Abstract: An oscillating circuit with a specified damping and tuned to the three-phase system frequency is built of active components. The system currents or voltages are so applied to it, that the oscillating circuit is excited by elimination of the positive phase sequence system components through addition of components of the negative phase sequence system. The system includes three series connected amplifier elements (P1, P2, P3) having phase shifts of 90, 90 and 180 degrees respectively. The first phase rotated value is fed to a first amplifying element (P1) via the input (E1) of the oscillating circuit. A valve 1/square root of 3 times the difference between the other two phase rotated values is fed to the second amplifying element via the input (E2) of the oscillating circuit. An arrangement (S) for picking up the output amplitude of the oscillating circuit is connected behind the third amplifying element (P3).
Patent DE-2706866-A1 (DE)
Title: Vice with parallel fixed and moving jaws - has curved transverse guides for moving jaw and frame
Inventor: JAGOB KARL
IPC: B25B1/24
Filed: 1977-02-17
Abstract: The parallel jaw vice has fixed and moving jaws. Parallelism of jaws is ensured even at high clamping forces. The parallel guide is relatively simple to make. The sliding element (20) is mounted on the frame (4), and in contact with the flat guide face (5) above gap (3). An additional sliding block (11) under the frame (4) rests on the vice base (1). The frame (4) is guided with a separating distance relative to the base. The sliding elements (11, 20) are D shaped in cross section and can be tilted about an axis at right angles to the clamping direction in the matching grooves (10, 18) in the frame and the base to ensure square clamping between jaws.
Patent DE-2708434-A1 (DE)
Title: Strip material aperture forming unit - has slits formed by rolling between rollers carrying cutters and apertures produced by tensioning band
Inventor: HILLESHEIM HANS
IPC: B21D31/04
Filed: 1977-02-26
Abstract: The strip is wound on a core (4) which is mounted on a support (5). From the core, the material is fed to a strip guide (6) and a tension regulator (8) from where it is fed between a slitting roller (10) and a counter roller (12). The material runs over and round and into a gap between the counter roller and profile roller (14). The profile roller is mounted near the counter roller diametrically opposite the slitting roller. While the material runs between the profile roller and the counter roller, it is stretched and its thickness is reduced so that the slits become holes.
Patent DE-2710581-A1 (DE)
Title: Valve actuator stepping motor potentiometer circuit - has two additional wipers setting upper and lower limits of main tapping wiper
Inventor: RAUFENBARTH FRANZ DIPL PHYS
IPC: G01D5/165
Filed: 1977-03-11
Abstract: The servomotor for a valve actuator has a potentiometer circuit to provide a feedback signal from the first wiper (10a) with two additional wipers (10b, 10c) which are adjustable to give a predetermined voltage range to the potentiometer track. The two wipers (10b, 10c) are connected to the voltage supplies (12, 14). An operational amplifier for use as an impedance converter (16) is connected into the feedback signal line. As an alternative the two additional wipers are connected into a control circuit, the track ends being part of an amplifier feedback circuit and the positive inputs of the amplifiers being connected to a voltage divider chain between the supply rails (12, 14).
Patent DE-2715531-A1 (DE)
Title: Associative holographic store for documentation system - has data sets stored as coded point rasters in addressable individual holograms
Inventor: MUEHLENFELD EIKE PROF
IPC: G11C13/04
Filed: 1977-04-07
Abstract: The associative holographic store has the data sets stored as coded point rasters in addressable individual holograms. The addressed individual holograms can be read via an integrated transducer providing a corresponding charge distribution pattern. The resulting charge distribution patterns for successive read-out operations are additively superimposed, with each point of the transducer corresponding to a key word, so that the charge for each point of the superimposed patterns signifies the relevance of the key word to the stored data. Pref. the light energy during read-out can be controlled in dependence on the weighting factors of the stored data.
Patent DE-2728006-A1 (DE)
Title: Seed drill with alternating shares and discs - has cover rollers positioned directly behind drill tubes
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C5/06
Filed: 1977-06-22
Abstract: The seed drill has a frame and shares which are connected with rollers and can move freely within a given region in the vertical plane. In front of the shares are cutter ploughs which are acted upon by an addition force. The shares (5) are alternately arranged in two transverse rows (10, 11). A roller (12) rolls on the soil at a lateral spacing (11) near the centre line (14) drawn through the appropriate share (9) in the direction of travel (4). The cutter ploughs (15) can be moved in the vertical plane independently of the shares (9). The cutter ploughs (15) are in a row (16) transverse to the direction of travel (4).
Patent DE-2730677-A1 (DE)
Title: Non-metallic underground pipe - with fine metallic particles added to the non-metallic material, to render it responsive to a metal detector
Inventor: SENOO RIKIZO
IPC: F16L9/14
Filed: 1977-07-07
Abstract: Underground pipe is made of non-metallic material, pref. PVC or polyethylene, to which are added fine metallic particles pref. Al, Cu and/or Fe powder, and pref. only in a surface layer of the pipe. The pipe pref. consists of an internal non-metallic pipe, surrounded by a sheath consisting of a mixt. of non-metallic material and fine metallic particles. The non-metallic material of the sheath and the material of the internal pipe corresponds to each other. The pipe responds to a conventional metal detector without losing the advantages of non-metallic pipes.
Patent DE-2736355-A1 (DE)
Title: Steel cable anchoring protection - has a low-viscosity plastic pressed into the hollow spaces between strands
Inventor: BORELLY WOLFGANG DIPL ING
IPC: D07B9/00
Filed: 1977-08-12
Abstract: To protect wire cables used for suspension bridges, etc. a strand or a group of strands is held within a steel tube of the same outer diameter within the anchor block, with a low viscosity plastic pressed into the free spaces from the end of the anchor through the tubes. At first this plastic mass penetrates the strand structure lightly, is well steeped, and finally pliably hardened. A passive corrosion-resistant agent is added to the plastic. The process ensures that the cable is protected where it joins the cast anchor unit.
Patent DE-2738228-A1 (DE)
Title: Demountable component assembled fence post - has smooth opposite faces and conically threaded bars in vertical central cut=outs
Inventor: WENZL EWALD
IPC: E04H17/14
Filed: 1977-08-24
Abstract: The fence, built up from parts, incorporates block element posts with a central vertical cutout for insertion onto a bar held in the ground, and with grooves to hold adjacent sections of fencing. The block elements (10), with intervening spacers of smaller cross-section, have smooth top surfaces and opposing base surfaces. The erect bars (2) may have a bottom end (3) with conical thread (4) for a nut (8), and a dowel plug (5) for anchorage in a hole (6) in the ground (7). All visible parts may be made of wood. This is readily adaptable to local needs, and easily assembled or dismantled without skilled labour or special tools.
Patent DE-2738472-A1 (DE)
Title: Small animals carrier box and housing - has frame between top and bottom, secured by bolts and spacers, leaving ventilation opening
Inventor: JUESTL FRITZ
IPC: A01K1/03
Filed: 1977-08-26
Abstract: The box for holding white mice, hamsters etc., consist of a rectangular base (2) and a cover (1) with a slit opening (1a) through the lip between them is an L section rectangular frame (3). Bolts (13) pass through the flanges of all three parts, and through distance pieces (10) to leave a ventilation channel all round the periphery of the box. Air enters the vertical gap between the vertical flange (3') of the frame and a shroud portion (15) projecting from the cover. It then travels past the frame horizontally to the interior. The slot in the top forms a hand grip.
Patent DE-2739060-A1 (DE)
Title: Zone melting dia. control - using capacitor parallel to heating coil tuned to higher harmonic for actual value signal
Inventor: KELLER WOLFGANG DR RER NAT
IPC: C30B13/30
Filed: 1977-08-30
Abstract: Control signal in the rod dia. control unit of a zone melting appts. is produced by connecting a variable capacitor in parallel to the induction heating coils. This forms a resonance circuit which can be tuned to a harmonic of the fundamental frequency of the high-frequency generator. Any frequency changes in this particular circuit, due to inductivity changes of the heating oil, are used as the output quantity for the prodn. of the actual value for the rod dia. control. Arrangement results in a much better sensitivity than when inductivity changes of the heating coil alone are used for the control.
Patent DE-2743743-A1 (DE)
Title: Electric hair dryer with blower - has adjustable handle forming straight bar or pistol handle
Inventor: SPIX THEODOR
IPC: A45D20/12
Filed: 1977-09-29
Abstract: The hair dryer has a handle (3) which is mounted for articulated movement on the housing (2) which contains the blower so that in its basic position the handle forms a bar with the housing. The rotary joint (16) for the handle is provided with several ratchets (7, 8) which can fix the handle at different angles to the housing. The rotation of the handle can be restricted to 180 deg. right or left by a stop (9). This stop can be omitted if the rotary joint is designed as an electromagnetic rotary coupling.
Patent DE-2750479-A1 (DE)
Title: Waste collecting vehicle - is fitted with container lifting and tipping device working with guide rollers and inclined guide tracks
Inventor: PEITZ BERND
IPC: B65F3/08
Filed: 1977-11-11
Abstract: Waste collecting vehicle with lifting and tipping installation located on the back including two support arms each of which has a hook at its free end to hold a support link of the waste container to be lifted. The lifting and tipping installation includes a carrying frame (20) for the waste container (4) providing a bearing for the support arms (5). These each have two support and guide rollers connected at the end of transverse axles which run on guide tracks having varying inclines located on the vehicle. There is a lifting device which acts on to the lowest transverse axle (15) and can move the container into its tipped up position.
Patent DE-2751992-A1 (DE)
Title: Plate spring column for pressure seal - has inner and outer guide sections for springs in released condition
Inventor: MUHR KARL-HEINZ DR ING
IPC: F16F1/32
Filed: 1977-11-22
Abstract: The plate spring column contains a large number of plates springs and a guide for them. The guide (2) consists of an outer (3) and an inner (4) section, and in the released condition part of the plate springs (1) are guided by the outer one and part by the inner one. The outer one can act as a guide for the inner one, and can have a central guide bolt (5), working in a mating opening (6) in the inner one. There can be a screw thread on the bolt, at least at the end towards the inner guide section.
Patent DE-2754328-A1 (DE)
Title: Heat insulated composite door or window profile - has H=shaped clamp pressing plastics connectors together
Inventor: HAUPTFELD GEORG DR
IPC: E06B3/277
Filed: 1977-12-06
Abstract: Two connecting elements, of thermically insulating material such as plastics, are fitted between two part profiles esp. of light metal, with guide-rails, in the composite profile unit for windows or doors; they are in contact with the guide-rails, and have similar profiles. These two connecting elements (16, 18) are pressed against each other with a clamping element which is H-profiled (20). The connecting elements may be trapezoid, with two spaced grooves (36, 38) on top (40) for rail (32, 34) engagement, while the bottom has a protrusion for the clamping element.
Patent DE-2756450-A1 (DE)
Title: Contact receiver for blade of electrical circuit breaker - has principal and secondary contact surfaces of different lengths
Inventor: KIEHN GUENTHER
IPC: H01H1/42
Filed: 1977-12-17
Abstract: The contact receiver has a contact body (1) which includes a principal contact (2a, 2b) and a secondary contact (3a, 3b). The principal and secondary contacts are at different heights. The two contacts (2a, b, 3a, b) are separated by a slot (4a, 4b) and form two opposite partial contact surfaces. The body (1) of the contact receiver has also a slot (5) in it which is designed to receive a contact spring. The length of the secondary contact (3a) exceeds the length of the principal contact (2a) by a determined amount. This is designed so that on closure or opening of the switch the last contact of the knife switch with the body (1) is made on the secondary contact (3a).
Patent DE-2758690-A1 (DE)
Title: Check valve for corrosive substances - has PTFE-lined casing and tantalum-coated shut=off disc supported by PTFE bearing sleeves
Inventor: HERBERHOLZ GUENTER
IPC: F16K27/02
Filed: 1977-12-29
Abstract: Shutoff flap valve for (chemically) aggressive media comprises a tubular, PTFE-line casing contg. a shut-off disc which can be adjusted by a shaft passing through the casing. Tight sealing of the flap is achieved by the PTFE lining (4) of the casing and a Ta-coating (21) with which the disc (5) is provided. DETAILS The disc (5) pref. has the shape of a symmetric spheric sector. Its surfaces nearest the casing are spherical cups which are symmetric with respect to the shaft. The disc (5) is pref. clamped between two PTFE bearing bushes.
Patent DE-2759081-A1 (DE)
Title: Modular noise suppression circuit for motor vehicle - has two parallel lC circuits on same insulating support and connected into separate lines
Inventor: HERDE HANS ING GRAD
IPC: H04B15/02
Filed: 1977-12-30
Abstract: The noise suppression circuit for motor vehicles, has an LC parallel circuit (7, 8) connected into the first line for which noise suppression is wanted. A second LC parallel circuit (9, 10) is connected into a second line for which noise suppression is wanted. Both the LC circuits are located on the same insulating support. The support has connection points allowing its LC circuits to be connected to the lines. The advantage lies in the circuit's being modular.
Patent DE-2804603-A1 (DE)
Title: Impact proof door lock with bolt and tumbler - has blocking abutment rigidly connecting locked bolt to lock case
Inventor: DOERRENHAUS FRIEDRICH
IPC: E05B59/00
Filed: 1978-02-03
Abstract: The lock, esp. on a door, has a bolt mounted in a housing unit or a drop bolt, and a tumbler. In the locking position the bolt, or drop bolt end, is rigidly coupled to the lock case, to prevent lengthways movement inwards, by a blocking abutment brought into operation between lock case and bolt. The abutment may be moved in and out of position by the same movement of the key in turning the block, by means of the key bit. The bolt cannot be moved by heavy blows, impacts or lever action.
Patent DE-2806349-A1 (DE)
Title: Flexible vibration dampening,torque coupling - has elastic toroidal element between inner and outer rings and located by loops which are bolted into place
Inventor: CHIVARI ILIE
IPC: F16D3/78
Filed: 1978-02-15
Abstract: The flexible coupling consists of an intermediate flexible member in the form of a toroid which is connected to inner and outer rings. The connection consists of loops of a flexible material so arranged that a relative angular displacement of one coupling ring to the other causes the flexible loops to exert pressure tending to compress the elastic toroid. The fastening of the loops is pref. by means of sleeves (10, 16) on the outer and inner coupling rings through which bolts or pins pass. Stiffening elements may be incorporated (52) in the toroid which may consist of a single endless element or several cylindrical elements. The flexible coupling is assembled without vulcanising so that, when it is necessary to replace the flexible element, it is only necessary to unbolt the loops on one side without removing the connectors as well.
Patent DE-2826926-A1 (DE)
Title: Charging device for DC loads - has clock pulse generator and two inverters connected in cascade and supplying load
Inventor: WITTE WALDEMAR
IPC: H02J7/02
Filed: 1978-06-20
Abstract: The loads have a mains charging unit and a battery. The system includes a clock pulse generator (TG) connected to the DC supply. There is a first inverter stage (I1) following the clock pulse generator (TG), whose output signal is applied to a first load terminal (A1). There is a second inverter stage (I2) following the output of the first inverter stage (I1), whose output is connected to the other terminal (A2) of the load.
Patent DE-2833635-A1 (DE)
Title: Meter to detect dirtying of optical boundaries - has LED which transmits radiation towards surface, and detects reflected radiation
Inventor: BLANKENFELD HEINZ DIPL PHYS
IPC: G01N21/55
Filed: 1978-08-01
Abstract: The surfaces are e.g. protective glasses or transmitter receiver and sighting optical systems in optical transmitters and/or receivers. A light emitting diode (2) modulated at a low frequency is placed on the inner side of the optical boundary surface (1). Its radiationis directed towards the boundary surface (1), and a detector (3) measures radiation reflected from the optical boundary surface outer side. The detector (3) is connected to a pre-amplifier (4), a reception signal unit (5), a measurement signal unit (6) and a control unit (7).
Patent DE-2837186-A1 (DE)
Title: Floating hydroelectric generating station - has four hull elements forming convergent-divergent duct for under-shot power wheel
Inventor: GILLOIS JEAN
IPC: B63H19/02
Filed: 1978-08-25
Abstract: The floating hydro-electric, partic, sea-motion powered, generating station has a pontoon type main hull carrying the undershot rotor (10) with two secondary hulls extending principally downwards (e.g. 2) secured to its sides and a watertight box underbody (3). The whole is so configured that it forms a convergent-divergent duct for the water driving the wheel. The secondary hulls and underbody can be ballasted to optimise draught and are strengthened over the middle portions (4) of their undersides. Small horizontal ducts through the secondary hulls, permitting additional water inflow and outflow, have external closures (7a, 8a); some automatically operated, some controllable.
Patent DE-2842513-A1 (DE)
Title: X=ray examination, appts. with two manually adjustable sections - has linear motor supplementing manual effort in moving adjustable section
Inventor: FINKENZELLER JOHANN ING GRAD
IPC: A61B6/00
Filed: 1978-09-29
Abstract: The X-ray examination appts. has two or more sections manually adjustable in relation to each other. A linear motor(29) is mounted between the two sections (13, 21), its power supplementing the manual effort, and on the movable one is a handle adjustable for very small amounts. The handle setting regulates the direction in which the linear motor acts. Where the movable section is counterbalanced, the motor can be mounted on the counterweight, the guide-rail of the latter(21) forming the secondary rail of the motor.
Patent DE-2852844-A1 (DE)
Title: Positioning and rotating workpiece in machine tool - employs separate axial and radial supports one of which is vibrated at ultrasonic frequency during machining
Inventor: GEBEL IOSIF DAVYDOVITSCH
IPC: B24B41/06
Filed: 1978-12-07
Abstract: A workpiece (1) shaped as a body of revolution with a plane face, is supported against separate axial and radial supports (3, 2) and is rotated by a rotary driving member (5). This has frictional contact with the workpiece. At least one of the supports is vibrated at ultrasonic frequency in a direction parallel to, or inclined at an angle a not greater than 10 degrees to, the line of contact between the workpiece and the support. The ultrasonic vibrations are of asymmetrical waveform during at least a part of a machining operation on the rotating workpiece.
Patent DE-2907753-A1 (DE)
Title: Sea oil slick collection system - which moves ship with parting devices at ends sideways against part of SLICK
Inventor: WAAS HEINRICH DR ING
IPC: B63B35/32
Filed: 1979-02-28
Abstract: Appts. collects an oil slick at sea caused by a leaking ship, drilling rig, etc. A ship is moved in the water at an acute or right angle to its lengthwise axis, having devices at both ends by which it parts off a portion of the slick of width corresponding to the ship length. The oil accumulating against the ship side is transferred inside it.
Patent DE-2910181-A1 (DE)
Title: Car engine oil pressure warning switch - has piston moved by oil pressure against spring tension varied as function of engine speed
Inventor: MEINCKE KLAUS
IPC: F01M1/20
Filed: 1979-03-15
Abstract: The oil pressure warning system is partic. intended for a motor vehicle engine. It comprises an oil pressure switch assembly (1-4) containing a piston (2) which is moved by the oil pressure (via 6) against a spring (7) and actuates a switch (4) in a warning light (13) circuit when the pressure drops below a pre-determined level. The spring tension is adjustable (via 8-12) as a function of the engine speed. The spring may bear on a slidable support (8) which may be moved by the engine speed adjusting lever (9) via linkage (10-12).
Patent DE-2917462-A1 (DE)
Title: Low cost drive for carriage of typewriter - has reversible motor driving carriage over band coupling and is suitable for golf-ball or daisy-wheel designs
Inventor: RICKE HEINZ
IPC: B41J19/36
Filed: 1979-04-30
Abstract: A low cost drive for the line feed of a carriage on a typewriter is provided by a reversible motor. The machine has a carriage (3) on which is mounted either a 'golf ball' type head or daisywheel (5), that is driven by a stepping motor (8). The carriage slides on guide bars (9, 11) and motion is transmitted by bands (31) wound around guide wheels (33, 35, 37). A ratchet unit based upon a rack (17) with interlocking pawl (13) defines the line feed increment. Movement is transmitted to the band by a gear, with coupled take up spiral spring, that is driven through an intermediate gear in mesh with a motor gear.
Patent DE-2925577-A1 (DE)
Title: Railway route control system - has groups of line conductor loops, each fed from single point only, each group end being terminated by wave resistor
Inventor: KNIGHT ALAN DIPL ING
IPC: B61L3/22
Filed: 1979-06-25
Abstract: The railway line is divided in individual sections, and the data transmission between the train, or its cars, and a stationary control office is carried out along the railway line via subsequent line loop sections, supplying feed installations with alternating current. These loops provide inductive couplings to the receivers on the train, or its vehicles. The line conductor loops are series interconnected by couplers. The loop group, thus formed is fed almost in rigid phase by several supply elements. The supply of which loop group takes place from a single point only, and the free ends of the group are closed by a wave resistor (ZL1-ZL4). Transformers (T4-T7) are pref. used as couplers whose coil centre taps are connected to a common potential, e.g. rail potential. With certain types of transformers capacitors (C) may be used on either side.